Use your scissors to cut out two squares of brown coffee filter that are about 10 cm x 10 cm ... This changing from a liquid to a gas is called evaporation. Heating a liquid causes the water molecules ...

There is filter paper in a filter funnel above another beaker. Evaporation is used to separate a soluble solid (i.e. a solid that dissolves) from a liquid. For example, copper sulfate is soluble ...

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